Pixel data generating device, image display device, radar apparatus, and method of generating pixel data
A technology of pixel data and generation device, applied in radio wave measurement systems, instruments, etc., can solve problems such as generation of interpolation data
Active Publication Date: 2015-03-11
FURUNO ELECTRIC CO LTD
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Problems solved by technology
In this regard, in the method of interpolating pixels one by one in the X-axis direction or Y-axis direction, the direction in which pixels are interpolated (X-axis direction or Y-axis direction) is different from the direction in which pixels have continuity (circumferential direction). , so it is difficult to generate the interpolated data in parallel with the rendering of the interpolated data
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Embodiment Construction
[0052] Embodiments of the invention will be described below. figure 1 It is a block diagram schematically showing the configuration of the radar device 10 according to one embodiment of the present invention.
[0053] figure 1 The shown radar device 10 of this embodiment includes a radar antenna 1 and an image display device (image display unit) 2 .
[0054] The radar antenna 1 is configured to be able to transmit (radiate) a sounding signal of a pulse-shaped radio wave, and to receive an echo signal of a reflected wave of the transmitted radio wave. The radar antenna 1 rotates in the horizontal plane at a predetermined period, and repeatedly outputs the detection signal described above while changing the azimuth at a period shorter than the rotation period. This radar antenna 1 includes a sounding signal generating device (not shown), and functions as sounding signal generating means.
[0055] The image display device 2 includes a reception unit 11 , an A / D conversion unit...
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The disclosed device generates a plurality of pixel data in an XY coordinate system. The pixel data includes first pixel data generated on a first sweep line, according to a distance from a transmitting source, based on an echo of a detection signal from the source toward a first direction, and second pixel data generated on a second sweep line, according to a distance from the source, based on an echo of a detection signal from the source toward a second direction different from the first direction. The device includes a module for converting the first and second pixel data into data in the XY coordinate system, a module for generating pixel data of an interpolation target pixel located between a first pixel as an observing pixel on an interpolation axis parallel to X-axis or Y-axis and a second pixel as a corresponding pixel on the same interpolation axis, based on the pixel data on the first and second sweep lines.
Description
technical field [0001] The present invention mainly relates to a pixel data generation device and method, an image display device, and a radar device, which generate pixel data corresponding to the distance from the above-mentioned emission source as XY right angles based on the echo signal of the detection signal emitted from the emission source. The pixel data of the coordinate system. Background technique [0002] A signal processing device such as a radar device displays on a monitor an image in which an object is plotted based on the position of the device (antenna) so that the user can intuitively grasp the positional relationship with the object. Here, on the above-mentioned display, pixels are generally arranged in a grid (matrix). Therefore, when an object or the like is drawn on an image, the positions of the pixels are handled on the XY rectangular coordinate system. Therefore, in the above-mentioned signal processing device, in order to display on a display, gen...
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IPC IPC(8): G01S7/295
CPCG01S7/298G01S7/064G01S7/16
Inventor 西山浩二中川和也
Owner FURUNO ELECTRIC CO LTD